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Is LDA pin grind worth it with K03?
#1
Ok I have converted my xsara dt, to bosch few months back. Runs well, about 21 psi max. on a stock K03 and a top mount inter cooler. 

However no matter how I rotate the lda pin I just can seem to find enough range of on-off boost fueling. If it has enough fuel on boost, it blows smoke off boost and in  a weird way somehow bogs down the car low down, slowing spool up (which on the k03 should be pretty much instant).


If I set the lda pin on a less aggressive slope it spools up faster, though feels a bit lean when on boost. 

Pretty much every position of the star wheel has been tried with little change, currently sitting about 7 turns from the bottom up.


Now is lda pin grind even worth it with k03? I understand they are very small turbos and they cant take much psi wise.
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#2
Have actually done it!


Its worth doing. A lot more range between off and on boost, feels more eager to rev...pushing 22 psi boost, hope the little k03 lasts.
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#3
Hmm missed this otherwise would have chimed in & it's definitely worth it as you say. K03 should be Ok at 22psi, beware going much over 25 though, I managed to overspeed the turbine so much at 28-30 that the thing literally exploded & embedded chunks of itself in the exhaust housing Big Grin Wouldn't want to be pushing big boost on a top mount anyway though TBF, depending on how hard you drive & what sort of road conditions you'll see decent gains going to front mount.
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#4
Yeah, front mount is in the planning stage...generally don't push the car that hard and I have mechanical sympathy. Seems even more powerful when cold outside, however heatsoak slows things down quickly  Rofl
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